<template>
   <div>
     <div class="card" style="margin-bottom: 5px">
       <el-input v-model="data.title" prefix-icon="Search" style="width: 240px; margin-right: 10px" placeholder="请输入公告标题查询"></el-input>
       <el-button type="info" plain @click="load">查询</el-button>
       <el-button type="warning" plain style="margin: 0 10px" @click="reset">重置</el-button>
     </div>
     <div class="card" style="margin-bottom: 5px">
       <el-button type="primary" plain @click="handleAdd">新增</el-button>
       <el-button type="danger" plain @click="delBatch">批量删除</el-button>
     </div>
 
     <div class="card" style="margin-bottom: 5px">
       <el-table stripe :data="data.tableData" @selection-change="handleSelectionChange">
         <el-table-column type="selection" width="55" />
         <el-table-column prop="title" label="公告标题" />
         <el-table-column prop="content" label="公告内容" />
         <el-table-column prop="time" label="发布时间" />
         <el-table-column label="操作" width="100" fixed="right">
           <template v-slot="scope">
             <el-button type="primary" circle :icon="Edit" @click="handleEdit(scope.row)"></el-button>
             <el-button type="danger" circle :icon="Delete" @click="del(scope.row.id)"></el-button>
           </template>
         </el-table-column>
       </el-table>
     </div>
     <div class="card" v-if="data.total">
       <el-pagination @current-change="load" background layout="prev, pager, next" :page-size="data.pageSize" v-model:current-page="data.pageNum" :total="data.total" />
     </div>
 
     <el-dialog title="公告信息" v-model="data.formVisible" width="40%" destroy-on-close>
       <el-form ref="form" :model="data.form" label-width="70px" style="padding: 20px">
         <el-form-item prop="title" label="公告标题">
           <el-input v-model="data.form.title" placeholder="请输入公告标题"></el-input>
         </el-form-item>
         <el-form-item prop="content" label="公告内容">
           <el-input type="textarea" :rows="4" v-model="data.form.content" placeholder="请输入公告内容"></el-input>
         </el-form-item>
       </el-form>
       <template #footer>
         <span class="dialog-footer">
           <el-button @click="data.formVisible = false">取 消</el-button>
           <el-button type="primary" @click="save">确 定</el-button>
         </span>
       </template>
     </el-dialog>
   </div>
 </template>
 
 <script setup>
 
 import {reactive} from "vue";
 import request from "@/utils/request.js";
 import {ElMessage, ElMessageBox} from "element-plus";
 import {Delete, Edit} from "@element-plus/icons-vue";
 
 
 const data = reactive({
   formVisible: false,
   form: {},
   tableData: [],
   pageNum: 1,
   pageSize: 10,
   total: 0,
   title: null,
   ids: []
 })
 
 const load = () => {
   request.get('/notice/selectPage', {
     params: {
       pageNum: data.pageNum,
       pageSize: data.pageSize,
       title: data.title
     }
   }).then(res => {
     if (res.code === '200') {
       data.tableData = res.data?.list || []
       data.total = res.data?.total
     }
   })
 }
 const handleAdd = () => {
   data.form = {}
   data.formVisible = true
 }
 const handleEdit = (row) => {
   data.form = JSON.parse(JSON.stringify(row))
   data.formVisible = true
 }
 const add = () => {
   request.post('/notice/add', data.form).then(res => {
     if (res.code === '200') {
       ElMessage.success('操作成功')
       data.formVisible = false
       load()
     } else {
       ElMessage.error(res.msg)
     }
   })
 }
 
 const update = () => {
   request.put('/notice/update', data.form).then(res => {
     if (res.code === '200') {
       ElMessage.success('操作成功')
       data.formVisible = false
       load()
     }
   })
 }
 
 const save = () => {
   data.form.id ? update() : add()
 }
 
 const del = (id) => {
   ElMessageBox.confirm('删除后数据无法恢复，您确定删除吗？', '删除确认', { type: 'warning' }).then(res => {
     request.delete('/notice/delete/' + id).then(res => {
       if (res.code === '200') {
         ElMessage.success("删除成功")
         load()
       } else {
         ElMessage.error(res.msg)
       }
     })
   }).catch(err => {
     console.error(err)
   })
 }
 const delBatch = () => {
   if (!data.ids.length) {
     ElMessage.warning("请选择数据")
     return
   }
   ElMessageBox.confirm('删除后数据无法恢复，您确定删除吗？', '删除确认', { type: 'warning' }).then(res => {
     request.delete("/notice/delete/batch", {data: data.ids}).then(res => {
       if (res.code === '200') {
         ElMessage.success('操作成功')
         load()
       } else {
         ElMessage.error(res.msg)
       }
     })
   }).catch(err => {
     console.error(err)
   })
 }
 const handleSelectionChange = (rows) => {
   data.ids = rows.map(v => v.id)
 }
 
 const reset = () => {
   data.title = null
   load()
 }
 
 load()
 </script>